Epo Anchor is two-component products based on epoxy resins, selected fine-grain aggregates and special additives. After mixing Epo Anchor (part A) with hardener (part B), a thixotropic mix, easy to apply is obtained. Once prepared, Epo Anchor hardens by chemical reticulation alone in approximately 5 hours without shrinkage. They become compounds with exceptional bonding and mechanical strength. Epo Anchor may also be applied on very damp surfaces as long as there is no standing water. Epo Anchor meet the requirements defined by EN 1504-9 “Products and systems for the protection and repair of concrete structures.
Field of Application
• Structural reinforcement of beams and pillars by bonding steel or composite material to concrete.
• Non-flexible structural bonding of precast concrete elements.
• Sealing injectors and surface damage before injection of Epo Inject by low-pressure pump.
• Sealing large cracks and repairing joint corners in industrial flooring subject to traffic.
• Bonding fiber-reinforced cement slabs and pipes.
• Waterproofing large size joints by bonding TPE strips to concrete.
COVERAGE / CONSUMPTION
Preparation of the support
To ensure good adhesion special care must be taken for the preparation of surfaces to be bonded. The concrete, natural stone or brick substrate must be clean, sound and dry. Sand-blasting is ideal to remove all loose and crumbling parts, efflorescence, cement laitance and traces of form-release oils. Then remove all dust with compressed air. All traces of rust, paint and oil must be removed from metal surfaces, preferably by means of sand-blasting down to bright metal. With regards to fresh placed concrete, it is necessary that the concrete cures for at least 28 days before applying Epo Anchor. This is to avoid tensions induced by hygrometric shrinkage of the concrete concentrated in the interface of the bonding. The application temperature of Epo Anchor must not be below +5°C and +10°C.
Preparing the product
The two parts of Epo Anchor must be mixed together. Pour part B (grey) into part A (White) and mix at a slow speed with a drill fixed with an agitator until a uniform paste is obtained (a uniform grey). The product is already pre-dosed. To avoid incomplete hardening of Epo Anchor, do not use partial quantities. When partial quantities are necessary, use a precision electronic scale. The mixing ratio is:
• 1 parts by weight of component A;
• 1 part by weight of component B.
Applying the product
Epo Anchor can be applied on concrete, stone, brick or metal with a flat trowel or float. To obtain good bonding, it is recommended to spread the adhesive on both surfaces that need bonding and let the product penetrate well, especially on irregular surfaces. After applying the adhesive, unite the two pieces that need bonding and keep firm until the adhesive has completely hardened. The sufficient thickness to obtain an excellent bonding strength is approximately 1-2 mm. Thanks to the excellent thixotropic property, Epo Anchor can also be applied vertically or on ceilings without slipping. The surrounding temperature has an effect on the hardening time of the two products. At +23°C Epo Anchor remains workable for approximately 50 minutes. After this time, the products begin the hardening process. Epo Anchor must be applied within the useful pot life time. It is therefore necessary to plan the work within the time limit mentioned above.